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Δ2Yt\Delta ^ { 2 } Y _ { t }

Question 32

Multiple Choice

Δ2Yt\Delta ^ { 2 } Y _ { t }


A) =ΔYt−ΔYt−1= \Delta Y _ { t } - \Delta Y _ { t-1 }
B) =Yt2−Yt−12= Y _ { t } ^ { 2 } - Y _ { t - 1 } ^ { 2 }
C) =ΔYt−ΔYt−2= \Delta Y _ { t } - \Delta Y _ { t - 2 }
D) =Yt−Yt−2= Y _ { t } - Y _ { t - 2 }

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